GHSA-5F2V-J4R4-VC2G

Vulnerability from github – Published: 2026-08-10 15:33 – Updated: 2026-08-19 18:32
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

dpaa2-eth: put MAC endpoint device on disconnect

fsl_mc_get_endpoint() returns the MAC endpoint device with a reference taken through device_find_child(). The Ethernet connect path stores that device in mac->mc_dev and keeps it for the lifetime of the connected MAC object.

However, the disconnect path only disconnects and closes the MAC before freeing the dpaa2_mac object. It does not drop the endpoint device reference stored in mac->mc_dev, so every successful connect leaks that device reference when the MAC is later disconnected.

Drop the endpoint device reference after closing the MAC and before freeing the dpaa2_mac object.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-68331"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-10T13:20:23Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndpaa2-eth: put MAC endpoint device on disconnect\n\nfsl_mc_get_endpoint() returns the MAC endpoint device with a reference\ntaken through device_find_child(). The Ethernet connect path stores that\ndevice in mac-\u003emc_dev and keeps it for the lifetime of the connected MAC\nobject.\n\nHowever, the disconnect path only disconnects and closes the MAC before\nfreeing the dpaa2_mac object. It does not drop the endpoint device\nreference stored in mac-\u003emc_dev, so every successful connect leaks that\ndevice reference when the MAC is later disconnected.\n\nDrop the endpoint device reference after closing the MAC and before\nfreeing the dpaa2_mac object.",
  "id": "GHSA-5f2v-j4r4-vc2g",
  "modified": "2026-08-19T18:32:15Z",
  "published": "2026-08-10T15:33:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68331"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1974127776da46a000c61f36d4946799ea6d4f51"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6b6ffdb9ca4547a3c4c274aa3e25b6c68dbc62e1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/915012e923316b8b5d5bf8fc771617b47bd7572d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a3cecf169cc652b558d08661bb6ce55e4c933ec0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b4b201cc93ff70150853aba03e14d314d1980ca0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e23e4a3b9dfd893469c731318d409cdf04fb1ddf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f112df0744e2d77baa68eeebb860021bbaaa022a"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}



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